572351421 has 12 divisors (see below), whose sum is σ = 805415712. Its totient is φ = 361484424.

The previous prime is 572351413. The next prime is 572351443. The reversal of 572351421 is 124153275.

It is not a de Polignac number, because 572351421 - 2³ = 572351413 is a prime.

It is a super-2 number, since 2×572351421² = 655172298241438482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572351621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263161 + ... + 265326.

It is an arithmetic number, because the mean of its divisors is an integer number (67117976).

Almost surely, 2^572351421 is an apocalyptic number.

It is an amenable number.

572351421 is a deficient number, since it is larger than the sum of its proper divisors (233064291).

572351421 is a wasteful number, since it uses less digits than its factorization.

572351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528528 (or 528509 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 572351421 is about 23923.8671832127. The cubic root of 572351421 is about 830.2730127184.

The spelling of 572351421 in words is "five hundred seventy-two million, three hundred fifty-one thousand, four hundred twenty-one".